org.apache.zookeeper

Enum KeeperException.Code

java.lang.Object

java.lang.Enum<KeeperException.Code>

org.apache.zookeeper.KeeperException.Code

All Implemented Interfaces:

Serializable, Comparable<KeeperException.Code>, KeeperException.CodeDeprecated

Enclosing class:

KeeperException

public static enum KeeperException.Code
extends Enum<KeeperException.Code>
implements KeeperException.CodeDeprecated

Codes which represent the various KeeperException types. This enum replaces the deprecated earlier static final int constants. The old, deprecated, values are in "camel case" while the new enum values are in all CAPS.

Enum Constant Summary

Enum Constants

Enum Constant and Description
APIERROR API errors.
AUTHFAILED Client authentication failed
BADARGUMENTS Invalid arguments
BADVERSION Version conflict In case of reconfiguration: reconfig requested from config version X but last seen config has a different version Y
CONNECTIONLOSS Connection to the server has been lost
DATAINCONSISTENCY A data inconsistency was found
EPHEMERALONLOCALSESSION Attempt to create ephemeral node on a local session
INVALIDACL Invalid ACL specified
INVALIDCALLBACK Invalid callback specified
MARSHALLINGERROR Error while marshalling or unmarshalling data
NEWCONFIGNOQUORUM No quorum of new config is connected and up-to-date with the leader of last commmitted config - try invoking reconfiguration after new servers are connected and synced
NOAUTH Not authenticated
NOCHILDRENFOREPHEMERALS Ephemeral nodes may not have children
NODEEXISTS The node already exists
NONODE Node does not exist
NOTEMPTY The node has children
NOTREADONLY State-changing request is passed to read-only server
NOWATCHER Attempts to remove a non-existing watcher
OK Everything is OK
OPERATIONTIMEOUT Operation timeout
RECONFIGINPROGRESS Another reconfiguration is in progress -- concurrent reconfigs not supported (yet)
RUNTIMEINCONSISTENCY A runtime inconsistency was found
SESSIONEXPIRED The session has been expired by the server
SESSIONMOVED Session moved to another server, so operation is ignored
SYSTEMERROR System and server-side errors.
UNIMPLEMENTED Operation is unimplemented
UNKNOWNSESSION Unknown session (internal server use only)

Field Summary

Fields inherited from interface org.apache.zookeeper.KeeperException.CodeDeprecated

APIError, AuthFailed, BadArguments, BadVersion, ConnectionLoss, DataInconsistency, EphemeralOnLocalSession, InvalidACL, InvalidCallback, MarshallingError, NewConfigNoQuorum, NoAuth, NoChildrenForEphemerals, NodeExists, NoNode, NotEmpty, Ok, OperationTimeout, ReconfigInProgress, RuntimeInconsistency, SessionExpired, SystemError, Unimplemented, UnknownSession

Method Summary

Modifier and Type	Method and Description
static KeeperException.Code	get(int code) Get the Code value for a particular integer error code
int	intValue() Get the int value for a particular Code.
static KeeperException.Code	valueOf(String name) Returns the enum constant of this type with the specified name.
static KeeperException.Code[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

OK

public static final KeeperException.Code OK

Everything is OK

SYSTEMERROR

public static final KeeperException.Code SYSTEMERROR

System and server-side errors. This is never thrown by the server, it shouldn't be used other than to indicate a range. Specifically error codes greater than this value, but lesser than APIERROR, are system errors.

RUNTIMEINCONSISTENCY

public static final KeeperException.Code RUNTIMEINCONSISTENCY

A runtime inconsistency was found

DATAINCONSISTENCY

public static final KeeperException.Code DATAINCONSISTENCY

A data inconsistency was found

CONNECTIONLOSS

public static final KeeperException.Code CONNECTIONLOSS

Connection to the server has been lost

MARSHALLINGERROR

public static final KeeperException.Code MARSHALLINGERROR

Error while marshalling or unmarshalling data

UNIMPLEMENTED

public static final KeeperException.Code UNIMPLEMENTED

Operation is unimplemented

OPERATIONTIMEOUT

public static final KeeperException.Code OPERATIONTIMEOUT

Operation timeout

BADARGUMENTS

public static final KeeperException.Code BADARGUMENTS

Invalid arguments

NEWCONFIGNOQUORUM

public static final KeeperException.Code NEWCONFIGNOQUORUM

No quorum of new config is connected and up-to-date with the leader of last commmitted config - try invoking reconfiguration after new servers are connected and synced

RECONFIGINPROGRESS

public static final KeeperException.Code RECONFIGINPROGRESS

Another reconfiguration is in progress -- concurrent reconfigs not supported (yet)

UNKNOWNSESSION

public static final KeeperException.Code UNKNOWNSESSION

Unknown session (internal server use only)

APIERROR

public static final KeeperException.Code APIERROR

API errors. This is never thrown by the server, it shouldn't be used other than to indicate a range. Specifically error codes greater than this value are API errors (while values less than this indicate a SYSTEMERROR).

NONODE

public static final KeeperException.Code NONODE

Node does not exist

NOAUTH

public static final KeeperException.Code NOAUTH

Not authenticated

BADVERSION

public static final KeeperException.Code BADVERSION

Version conflict In case of reconfiguration: reconfig requested from config version X but last seen config has a different version Y

NOCHILDRENFOREPHEMERALS

public static final KeeperException.Code NOCHILDRENFOREPHEMERALS

Ephemeral nodes may not have children

NODEEXISTS

public static final KeeperException.Code NODEEXISTS

The node already exists

NOTEMPTY

public static final KeeperException.Code NOTEMPTY

The node has children

SESSIONEXPIRED

public static final KeeperException.Code SESSIONEXPIRED

The session has been expired by the server

INVALIDCALLBACK

public static final KeeperException.Code INVALIDCALLBACK

Invalid callback specified

INVALIDACL

public static final KeeperException.Code INVALIDACL

Invalid ACL specified

AUTHFAILED

public static final KeeperException.Code AUTHFAILED

Client authentication failed

SESSIONMOVED

public static final KeeperException.Code SESSIONMOVED

Session moved to another server, so operation is ignored

NOTREADONLY

public static final KeeperException.Code NOTREADONLY

State-changing request is passed to read-only server

EPHEMERALONLOCALSESSION

public static final KeeperException.Code EPHEMERALONLOCALSESSION

Attempt to create ephemeral node on a local session

NOWATCHER

public static final KeeperException.Code NOWATCHER

Attempts to remove a non-existing watcher

Method Detail

values

public static KeeperException.Code[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (KeeperException.Code c : KeeperException.Code.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static KeeperException.Code valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

intValue

public int intValue()

Get the int value for a particular Code.

Returns:

error code as integer

get

public static KeeperException.Code get(int code)

Get the Code value for a particular integer error code

Parameters:

code - int error code

Returns:

Code value corresponding to specified int code, or null